Article: VTT sets S55 stock internal record at 734 whp - F82 M4 w/ VTT Stage 2 turbo upgrade

[Tony@VargasTurboTech]

We finally got around to finishing up the testing our on S55 Stage turbo's, and the results as we expected. We picked up the Stock motor S55 power record, previous it was 728, we made 734WHP, and 729WHP on two different pulls this am. We also managed to make 762WTQ on a more aggressive throttle map. Also if anyone wants to say glory pulls, here are 10 runs all above 700WHP from yesterday and this am. The 734WHP, and 729WHP runs were made on the E30 OTS BM3 map, no special tuning, the problem is the E30 scaler is too low up top, and even with PI adding a ton of fuel, we are just plain out of fuel. Dzenno gave us a map with better E85 scaler, more aggressive throttle, and 2-3 degrees less timing, it picked up the tq down low, and it pulls clean all the way up every run. The E30 OTS map is prob a little aggressive timing wise for these boost levels so we wont run it there, custom maps are always better for these levels.

As you can see car is making 500WTQ by around 3300, and 700 by 3800K. This is a solid 500+ RPM better spool than the other turbos you see on the market.

A big thanks of course To Dzenno at BM3 for the help, its fun working with him again! Also to Terry, Mike at EOS, and Bell intercoolers for the great intercooler. Not to mention the owner who let us use his car as a test bed!

There is one S55 making more power at 745WHP (11WHP more), which is a fully built motor, fully ported head, 9 second race car, and one car making more Power / TQ at 763WHP/776WTQ (14WTQ more) and its running a 100 shot of NOS. Impressive? We think so... We will be getting this car to the track, and 1/2 mile events very soon.

Specs are as follows

2015 BMW M4 DCT
Dodson Sportsman Clutch upgrade
100% Stock motor
Stock Crank hub
VTT Stage2 turbos
VTT silicone charge pipes
BMS intakes
Aftermarket downpipes
Catless exhaust
EOS V2 top mount PI manifold
PFS Double Shot LPFP Upgrade
VTT / Bell Air to Water intercooler
Custom BM3 flash by Dzenno
JB4
100% E85
Boost level 34-35 psi
Log: http://www.datazap.me/u/vargasturbot...10-12-14-18-24